[TextInputLayout] Fix onMeasure() infinite loop bug caused by posting…

… requestLayout() before endLayout is fully rendered.

Brief explanation: in TextInputLayout#onMeasure, TextInputLayout will try to send a post to trigger requestLayout() method based on the boolean value returned from updateDummyDrawbles() method, but in shouldUpdateEndDummyDrawable(), we try to get the endLayout.getMeasureWidth() which is not reliable, if the endLayout hasn't rendered fully, the getMeasureWidth() will return 0 making the updateDummyDrawables() to return TRUE to trigger requestLayout() in an infinite loop.

To fix this issue, we need to introduce ViewTreeObserver to help us to run posing the requstLayout() after endLayout/startLayout is fully rendered.

PiperOrigin-RevId: 571765829

lib/java/com/google/android/material/textfield/TextInputLayout.java

@@ -57,6 +57,7 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.ViewStructure;
+import android.view.ViewTreeObserver.OnGlobalLayoutListener;
 import android.view.accessibility.AccessibilityEvent;
 import android.widget.AutoCompleteTextView;
 import android.widget.EditText;
@@ -197,7 +198,7 @@
  * developer guidance</a> and <a href="https://material.io/components/text-fields/overview">design
  * guidelines</a>.
  */
-public class TextInputLayout extends LinearLayout {
+public class TextInputLayout extends LinearLayout implements OnGlobalLayoutListener {
 
   private static final int DEF_STYLE_RES = R.style.Widget_Design_TextInputLayout;
 
@@ -452,6 +453,8 @@ public interface OnEndIconChangedListener {
 
   private boolean restoringSavedState;
 
+  private boolean globalLayoutListenerAdded = false;
+
   public TextInputLayout(@NonNull Context context) {
     this(context, null);
   }
@@ -715,6 +718,21 @@ public TextInputLayout(@NonNull Context context, @Nullable AttributeSet attrs, i
     setHelperText(helperText);
   }
 
+  @Override
+  public void onGlobalLayout() {
+    if (VERSION.SDK_INT < VERSION_CODES.JELLY_BEAN) {
+      endLayout.getViewTreeObserver().removeGlobalOnLayoutListener(this);
+    } else {
+      endLayout.getViewTreeObserver().removeOnGlobalLayoutListener(this);
+    }
+    globalLayoutListenerAdded = false;
+    boolean updatedHeight = updateEditTextHeightBasedOnIcon();
+    boolean updatedIcon = updateDummyDrawables();
+    if (updatedHeight || updatedIcon) {
+      editText.post(() -> editText.requestLayout());
+    }
+  }
+
   @Override
   public void addView(
       @NonNull View child, int index, @NonNull final ViewGroup.LayoutParams params) {
@@ -3247,16 +3265,9 @@ public void onRtlPropertiesChanged(int layoutDirection) {
   protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
     super.onMeasure(widthMeasureSpec, heightMeasureSpec);
 
-    boolean updatedHeight = updateEditTextHeightBasedOnIcon();
-    boolean updatedIcon = updateDummyDrawables();
-    if (updatedHeight || updatedIcon) {
-      editText.post(
-          new Runnable() {
-            @Override
-            public void run() {
-              editText.requestLayout();
-            }
-          });
+    if (!globalLayoutListenerAdded) {
+      endLayout.getViewTreeObserver().addOnGlobalLayoutListener(this);
+      globalLayoutListenerAdded = true;
     }
     updatePlaceholderMeasurementsBasedOnEditText();
     endLayout.updateSuffixTextViewPadding();